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Ceph is a distributed object, block, and file storage platform
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Sage Weil ad1cd81fd0 mds: be careful obeying REQRDLOCK 
Only do a simple_sync() if we are stable, auth, and not already sync.  The
client request can race with other state changes, so be careful.  The
client will also retry on any state change, so we can safely ignore if
things don't look quite right.

This fxes crash:
mds/Locker.cc: In function 'bool Locker::simple_sync(SimpleLock*, bool*)':
mds/Locker.cc:2592: FAILED assert(0)
1: (Locker::handle_file_lock(ScatterLock*, MLock*)+0x2a8) [0x57d328]
2: (MDS::_dispatch(Message*)+0x2165) [0x4a11d5]
3: (MDS::ms_dispatch(Message*)+0x6d) [0x4a169d]
4: (SimpleMessenger::dispatch_entry()+0x733) [0x47c903]
5: (SimpleMessenger::DispatchThread::entry()+0x1c) [0x474bac]
6: (Thread::_entry_func(void*)+0xa) [0x48748a]
7: /lib/libpthread.so.0 [0x7f8af92ff73a]
8: (clone()+0x6d) [0x7f8af852569d]
2010-07-22 12:01:11 -07:00
debian debian: fix typo in libcrush description 2010-07-22 10:53:14 -07:00
fusetrace reorganized source tree 2007-12-19 13:28:33 -08:00
man rbd: add removal of snapshots 2010-07-19 10:20:43 -07:00
qa qa: do untar_snap_rm on two different tarballs (medium and big) 2010-07-02 15:59:36 -07:00
src mds: be careful obeying REQRDLOCK 2010-07-22 12:01:11 -07:00
web web: updates 2008-03-10 09:20:51 -07:00
wireshark Bug #98: Unique names for include guards 2010-06-17 10:47:37 -07:00
.gitignore mkmonfs: remove all traces 2010-07-02 07:57:16 -07:00
AUTHORS update authors 2010-07-02 10:14:41 -07:00
autogen.sh automake: some clean up 2010-05-18 08:01:23 -07:00
builddebs.sh debian: make helper scripts remember most recent release 2010-07-08 14:27:57 -07:00
ceph.spec.in fix FCGI detection and specfile 2010-07-09 13:51:14 -07:00
ChangeLog first pass at autoconf and automake 2008-01-27 20:45:29 -08:00
configure.ac fix FCGI detection and specfile 2010-07-09 13:51:14 -07:00
COPYING first pass at autoconf and automake 2008-01-27 20:45:29 -08:00
INSTALL autoconf changes to build on a debian/testing machine 2008-02-01 09:59:44 -08:00
Makefile.am Makefile: drop unnecessary dist-hook for make_version 2010-07-06 10:10:19 -07:00
NEWS first pass at autoconf and automake 2008-01-27 20:45:29 -08:00
publish.sh debian: make helper scripts remember most recent release 2010-07-08 14:27:57 -07:00
pull.sh debian: make helper scripts remember most recent release 2010-07-08 14:27:57 -07:00
push.sh debian: make helper scripts remember most recent release 2010-07-08 14:27:57 -07:00
README mkmonfs: remove all traces 2010-07-02 07:57:16 -07:00
RELEASE_CHECKLIST v0.20 2010-04-23 12:10:24 -07:00
release.sh debian: make helper scripts remember most recent release 2010-07-08 14:27:57 -07:00
sign.sh debian: make helper scripts remember most recent release 2010-07-08 14:27:57 -07:00

README 

Ceph - a scalable distributed file system
-----------------------------------------

Please see http://ceph.newdream.net/ for current info.

----

To build the server daemons, and FUSE client,

$ ./autogen.sh
$ ./configure

$ make
 or
$ cd src
$ make

(Note that the FUSE client will only be built if libfuse is present.)

----

A quick summary of binaries that will be built in src/

daemons:
 cmon -- monitor daemon.  handles cluster state and configuration
         information.
 cosd -- storage daemon.  stores objects on a given block device.
 cmds -- metadata daemon.  handles file system namespace.
 ceph -- send management commands to the monitor cluster.

userland clients:
 cfuse -- fuse client.
 csyn -- synthetic workload generator client.

tools:
 monmaptool -- create/edit mon map
 osdmaptool -- create/edit osd map 
 crushtool -- create/edit crush map

scripts:
 mkcephfs -- cluster mkfs tool
 init-ceph -- init.d start/stop script